HP80 battery pack voltage reversed

[PANAMATIK]

(11-04-2016 08:28 AM)Alejandro Paz(Germany) Wrote:  That is one of the models that gets fried with the charger only (withOUT the batteries).

I don't think so. All Classic models HP-35/45/55/65/70/80 can be run without batteries, because they have a fixed 4.5 V power from the charger and don't need the batteries as buffer.

Bernhard